/**
*      author: Y_Yao
*      created: 2024-11-22 19:15:29
**/

#include<bits/stdc++.h>

using namespace std;
using LL = long long;
const LL LLINF = 1e18;
const int INF = 0x3f3f3f3f;

void solve()
{
    string s;
    cin >> s;
    unordered_map<char,int> hash;
    for(auto e : s)
    {
        hash[e]++;
    }
    if(hash['A'] == 1 && hash['B'] == 1 && hash['C'] == 1)
    {
        cout << "Yes" << endl;
    }
    else cout << "No" << endl;
}

int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);

    int t = 1;
    //cin >> t;
    while(t--)
    {
        solve();
    }
    return 0;
}